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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorjmansion
    • CommentTimeAug 2nd 2014
    Does anyone know what is involved?

    Lime Technology claim it can be sprayed.

    I'll ask them but the complexity is, that this would be for a building in Central Portugal, and it is relatively unlikely that they would be supplying materials.

    • CommentTimeAug 2nd 2014
    I can't see why it can't be sprayed. The important things will be to use the right equipment (suitably chunky mixer/pump and nozzles designed for the mix) and to use an appropriate mix. So find somebody who's done it before, or at least sprayed a variety of renders or concretes and shows a spark of interest. I'll ask my plasterer whether he knows of anybody in Portugal.
    It's mildly complex ; ) A hempcrete spraying set-up consosts of a slurry line and a hemp feed that mix at the point of exit, at the hose end, as you spray it. The slurry is running off a regular pan mixer and the hemp is in a special hopper. Compressed air delivers the hemp and kind of swirls it around at the exit point so the slurry & hemp mix just before they hit the shuttering.

    I've been involved in large jobs using both and I'd only bother with placed hemp in future. Sprayed hemp isn't quicker, as the prep required is extensive, plus there is a lot of waste.

    That said, there is only one contractor do8ng Lime Tech's spray installations and you could find him quite easily by googling & speak to him direct - he has experience in many binders not just Tradical, & has worked in Europe.

    PM me (whisper?) if you'd like details re: the spraying guys. Or ask away with questions re: placed hemp.
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